The father of Justin Carter, the teen accused of making terroristic threats on Facebook, told NPR’s Morning Edition today that his son is persistently getting beat up and treated horribly at the Comal County Jail in Texas where he is being held.

“Without getting into the really nasty details, he’s had concussions, black eyes, moved four times from base for his own protection,” Carter’s father, Jack, told NPR.org. “He’s been put in solitary confinement, nude, for days on end because he’s depressed. All of this is extremely traumatic to this kid. This is a horrible experience.”

19-year-old Carter is locked up on a felony charge because of a joke he made on Facebook on Feb. 13 talking about shooting up a school following a game of League of Legends.

“I think Ima shoot up a kindergarten / And watch the blood of the innocent rain down/ And eat the beating heart of one of them,” Carter allegedly remarked.

His father says the comment was taken out of context and was followed up by “JK” and “lol,” indicating his son was just kidding. A grand jury, however, deemed his comments terroristic and indicted him.

A judge set his bail at half a million dollars, an unprecedented amount according to Carter’s attorney, Don Flanary.

“I have been practicing law for 10 years, I’ve represented murderers, terrorists, rapists. Anything you can think of. I have never seen a bond at $500,000,” Flanary stated.

Carter’s father says his son got got carried away and is extremely sorry.

“I miss my son. He’s my friend and I just want him out,” his father incredibly overwhelmed with emotion. “Nobody’s life should be ruined because of a sarcastic comment.”

If convicted, Carter faces a maximum of 10 years in prison.

Justin’s parents started a petition to raise awareness of his situation.